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Finding the Fourth Proportional to 467.09, 700.02 and 206.78

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Solution

The fourth proportional to 467.09, 700.02 and 206.78 is: 309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    467.09 : 700.02 = 206.78 : x
  2. Step 2: Convert to fraction form
    467.09/700.02 = 206.78/x
  3. Step 3: Cross multiply
    467.09x = 700.02 × 206.78
  4. Step 4: Simplify right side
    467.09x = 144,750.14
  5. Step 5: Solve for x
    x = 144,750.14/467.09
  6. Step 6: Final answer
    x = 309.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.